ORLANDO, FL - JUNE 15: Milo Yiannopoulos, a conservative columnist and internet personality, holds a press conference down the street from the Pulse Nightclub, June 15, 2016 in Orlando, Florida. Yiannopoulos was briefly banned from Twitter on Wednesday. The shooting at Pulse Nightclub, which killed 49 people and injured 53, is the worst mass-shooting event in American history. (Photo by Drew Angerer/Getty Images)Drew Angerer

On Wednesday night, a peaceful demonstration at the University of California, Berkeley, against notorious online troll Milo Yiannopoulos, who was set to speak that evening at the school, turned violent after a separate group of masked protesters showed up and proceeded to destroy property and set multiple fires on the California campus.

Milo — an editor at Breitbart News, a favorite platform of the "alt-right" (AKA white nationalists), who is notorious for his bigoted and sexist remarks — was invited to speak at the University of California-Berkeley by the school's College Republicans club. In recent weeks on his college tour, Yiannopoulos outed a transgender woman on the University of Wisconsin-Milwaukee campus (which made her decide to drop out), and one of his speaking engagements at UC Davis had to be canceled due to what the university considered safety concerns with protests.

Because of his visit, a peaceful protest was planned for the event, and approximately 1,500 people had gathered to chant and hold signs.

Soon after, a group mostly dressed in black with face masks descended upon the scene. NBC News reported that they threw a fire bomb into a generator-powered spotlight, which caused a fire, and also threw commercial-grade fireworks at police. The group also broke windows and damaged other buildings in the area. About two hours before Yiannopoulos was scheduled to speak, the administration canceled the event, according to CNN. The campus also went into lockdown after the incident for several hours.

After the protests, CNN reported that at least six people were injured, and the university blamed an anarchist group called the "Black Bloc" for the violence, calling them a group of about "150 masked agitators." There were no reported arrests, according to CNBC.

UC Berkeley's administration also came out with a statement on the matter. "Campus officials said they condemn in the strongest possible terms the violence and unlawful behavior that was on display and deeply regret that those tactics now overshadow the efforts of the majority to engage in legitimate and lawful protest against the performer’s presence at Berkeley and his perspectives," it read.

The school also made it clear that Yiannopoulos wasn't invited to campus because the administration agreed with his views, but because of the constitutional right to free speech and the college's status as a public university. "UC Berkeley is bound by the Constitution, the law and the university’s values and Principles of Community, which include the enabling of free expression across the full spectrum of opinion and perspective," the official statement said.

President Donald Trump also took to his personal Twitter to weigh in on the matter. "If U.C. Berkeley does not allow free speech and practices violence on innocent people with a different point of view - NO FEDERAL FUNDS?" he tweeted. However, removing a university's federal funding is under the purview of Congress, not the president, and there are no signs thus far that actions are being taken by representatives to remove that funding.